Wolf’s Head Extreme-Duty Synthetic Blend 15W40 Motor Oil. This is a new, high performance diesel engine oil developed to offer the ultimate in diesel engine oil protection for your new and expensive equipment by offering better and stronger armor against wear, improved performance and greater fuel economy. These oils are especially equipped to protect new 2007 and later EGR/Low-Emission Diesel Engines while maximizing the durability of Diesel Particulate Filters (DPF’s). New additive systems and rigorous laboratory and field testing have proven that these new oils are up to the task of protecting your engine; helping your engine operate within the new emission and pollution requirements as well as meeting or exceeding the OEM requirements for every new engine being built by every engine manufacturer worldwide, including but not limited to: Caterpillar, Cummins, DaimlerChrysler (Mercedes Benz), Detroit Diesel, Volvo, Mack (including the new and more stringent Mack EO-O Premium Plus 2007), MAN, and Navistar. These new high performance oils are specifically engineered to meet the manufacturers’ prerequisite for performance, TBN, and balanced low ash (1% maximum) requirements. They will deliver superior long lasting protection for both turbocharged and naturally aspirated diesel and gasoline engines whether in highway or off-highway equipment. They are formulated for extended service/extended drain when operated under typical operating conditions and are engineered to help promote fuel economy. These new oils meet or exceed the NEW API CJ-4/SM Service Classification and meet prior API specifications for CI-4 Plus, CI-4, CH-4, CG-4, CF-4, CF-2, CF and API SL, SJ, and SH. These oils are registered Mack EO-O Premium Plus '07, and meet prior specifications for EO-N Premium Plus, EO-M Plus, and EO-M. This oil is also registered to Detroit Diesel 93K218, 93K215, and 93K214; Cummins CES 20081, 20078, 20077, 20076. This oil meets Allison C4 and C3 fluids and Caterpillar ECF-3, ECF-1, TO-2. This oil is also registered for the following European and Asian approval standards: Volvo VDS-4, VDS-3, VDS-2 and meets specifications for Global DHD-1; JASO DH-2 and DH-1. This oil is engineered to be robust enough to meet MB 228.5, 228.3, 228.1, 227.1; MAN 3275; MTU Type I & II; ACEA E7-04, E4, E2, A5/B5,A3/B4, A3/B3, A1/B1; and Renault RLD-3. The Wolf's Head Synthetic Blend 15W40 diesel engine oil is recommended for use in MIL L 2104-G, MIL L 46152-E, and CID A-A-52306 applications. 12Packs. 15W40